What I got - Orange background as if I were opening it, but nothing happened
What I expected - Expected to put the blueprint on my cursor so I could place it.
- Happens always since 2.0.69 update.
Blueprints work fine from toolbar. Ctrl-C works fine. Shift+Left Click works fine to move to my inventory and back. Same with Ctrl-Left Click.
Before even logging in since update I had installed Rate Calculator, I have since removed it (Never having saved the game), this did not fix it.
I downgraded to 2.066 and it removed all of my blueprints.
Reupgraded to 2.0.69 and they show up again but I still cannot use them.

Edit: Logfile attached, I'm playing heavily modded so I hope it's still useful, I can remove whatever mods might be required or all if needed.